Available solutions

• HTTP GET/POST (includes Subscription forms, that are based on the same methods)
• SOAP API
• REST API
• SMTP+ (SMTP Relay)
• FTP
• List+
• Other (Frontend reporting pages, Subscription forms)

You can develop your integration with MailUp by mixing the available solutions, taking advantage of the features they provide. Here below there is a comparison map between them.
Development can be done starting from scratch learning from available samples (see docs for each solution), or you can use the RubyGem

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SUBSCRIPTIONS	HTTP, Forms	SOAP	REST	SMTP+	FTP	List+	Frontend
Import recipient (single)				1	2
Import of recipients (bulk)						3
Bulk import limit (Mega Bytes or number of recipients)		MailUpImport : Multiple import by splitting in blocks, up to 5000 recipients 1,5 MB per block SendMessageNL: as FTP case	Multiple import by splitting in blocks, up to 5000 recipients 7 MB per block		2 millions	150000
Force optin of unsubscribed recipient (single)	?	2			2
Force optin of unsubscribed recipients (bulk)
Unsubscribe recipient (single)					2
Unsubscribe recipient (bulk)
Read personal data fields settings
Update recipients' personal data fields
Check recipient's subscription status
Add to group (single)					2
Add to group (bulk)
Remove from group (single)
Remove from group (bulk)					4

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